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Re: [EnergyPlus_Support] Help -Simulation crash
Note that the warning message says the calculated relative humidity is
greater than 100%. It also shows that this happens once in January, and
then several more times in February, so it is not related to the summer
weather. This error usually occurs when the zones are not properly
controlled (using HVAC systems) or ventilation/infiltration is set too low.
I transitioned your file to the latest version of Energyplus (V5) and
found these errors:
** Severe ** Out of range value Numeric Field#1 (Thermal Resistance),
value=0.00057, range={>=.001}, in MATERIAL:NOMASS=G1:POLETHYLENEFILM
** Severe ** Out of range value Numeric Field#1 (Thermal Resistance),
value=0.00057, range={>=.001}, in MATERIAL:NOMASS=G3:PLASTICFILM
** Severe ** Out of range value Numeric Field#1 (Thermal Resistance),
value=0.00001, range={>=.001}, in MATERIAL:NOMASS=G4:DUMMY
I changed these 3 objects:
Material:NoMass,
G1:PolethyleneFilm, !- Name
Rough, !- Roughness
0.001, !- Thermal Resistance {m2-K/W}
0.9000000, !- Thermal Absorptance
0.7500000, !- Solar Absorptance
0.7500000; !- Visible Absorptance
Material:NoMass,
G3:PlasticFilm, !- Name
Rough, !- Roughness
0.001, !- Thermal Resistance {m2-K/W}
0.9000000, !- Thermal Absorptance
0.7500000, !- Solar Absorptance
0.7500000; !- Visible Absorptance
Material:NoMass,
G4:Dummy, !- Name
VeryRough, !- Roughness
0.001, !- Thermal Resistance {m2-K/W}
0.00001, !- Thermal Absorptance
0, !- Solar Absorptance
0; !- Visible Absorptance
You should also add report variables to your input file so that you can
see the zone conditions. Add these and run your simulation again:
Output:Variable,*,Zone/Sys Air Temperature,Hourly;
Output:Variable,*,Zone Air Relative Humidity,Hourly;
Other report variables may be needed to diagnose the actual problem
(e.g., reporting node temperatures, node mass flow rates, etc.) See your
rdd file and search the documentation for "Output:Variable" to
understand how to do this. This should help you identify the problem.
Ifigeneia Theodoridou wrote:
>
> Dear all,
>
> I am receiving this error message and my simulation is crashing when
> entering month Mai (perhaps this is irrelevant, although it could have
> to do with summer conditions). I am attaching my file pls pls pls have
> a look and let me know!
>
> Thank you in advance!
>
> Ifigeneia
>
> P.S. The error file is:
>
> Program Version,EnergyPlus 3.1.0.027, 28/01/2010 11:33,IDD_Version
> 3.1.0.027
> ** Warning ** IP: Objects="Output:Reports" are being transitioned to
> this object="various - depends on fields"
> ************* Beginning Zone Sizing Calculations
> ** Warning ** Site:GroundTemperature:BuildingSurface: Some values fall
> outside the range of 15-25C.
> ** ~~~ ** These values may be inappropriate. Please consult the Input
> Output Reference for more details.
> ************* Testing Individual Branch Integrity
> ************* All Branches passed integrity testing
> ************* Testing Individual Supply Air Path Integrity
> ************* All Supply Air Paths passed integrity testing
> ************* Testing Individual Return Air Path Integrity
> ************* All Return Air Paths passed integrity testing
> ************* No node connection errors were found.
> ** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
> ** ~~~ ** Occurrence info=BERLIN - DEU IWEC Data WMO#=103840, 01/06
> 07:30 - 07:35
> ** ~~~ ** Dry-Bulb= 23.61 Humidity Ratio= 1.881E-002 Calculated
> Relative Humidity (fraction)= 1.01
> ** ~~~ ** Relative Humidity being reset to 1.0
> ** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
> ** ~~~ ** Occurrence info=BERLIN - DEU IWEC Data WMO#=103840, 02/15
> 19:15 - 19:20
> ** ~~~ ** Dry-Bulb= 23.25 Humidity Ratio= 1.785E-002 Calculated
> Relative Humidity (fraction)= 1.01
> ** ~~~ ** Relative Humidity being reset to 1.0
> ** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
> ** ~~~ ** Occurrence info=BERLIN - DEU IWEC Data WMO#=103840, 02/16
> 19:15 - 19:19
> ** ~~~ ** Dry-Bulb= 23.32 Humidity Ratio= 1.800E-002 Calculated
> Relative Humidity (fraction)= 1.01
> ** ~~~ ** Relative Humidity being reset to 1.0
> ** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
> ** ~~~ ** Occurrence info=BERLIN - DEU IWEC Data WMO#=103840, 02/17
> 19:15 - 19:20
> ** ~~~ ** Dry-Bulb= 23.23 Humidity Ratio= 1.790E-002 Calculated
> Relative Humidity (fraction)= 1.01
> ** ~~~ ** Relative Humidity being reset to 1.0
> ** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
> ** ~~~ ** Occurrence info=BERLIN - DEU IWEC Data WMO#=103840, 02/20
> 07:30 - 07:38
> ** ~~~ ** Dry-Bulb= 23.59 Humidity Ratio= 1.852E-002 Calculated
> Relative Humidity (fraction)= 1.01
> ** ~~~ ** Relative Humidity being reset to 1.0
> ** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
> ** ~~~ ** Occurrence info=BERLIN - DEU IWEC Data WMO#=103840, 02/20
> 07:30 - 07:38
> ** ~~~ ** Dry-Bulb= 23.53 Humidity Ratio= 1.845E-002 Calculated
> Relative Humidity (fraction)= 1.01
> ** ~~~ ** Relative Humidity being reset to 1.0
>
>
--
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
1679 Clearlake Road
Cocoa, FL 32922-5703
Phone: (321) 638-1454
Fax: (321) 638-1439 or 1010
Visit our web site at: http://www.fsec.ucf.edu
UCF - From Promise to Prominence: Celebrating 40 Years
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